RB - reverse blank RI - reverse identicalMZ - from the collection of Miluska ZdarskaFR - from the collection of Frantisek RehakMD - from the collection of Marianne DumjahnME - from the collection of Marko ErmanVG - from the collection of Vera GregovaJS - from the collection of Jitka SosolikovaAJK - from the collection of Mr. and Mrs. Kolin